The Characteristic Of The In-Cylinder Fluid Flow Of 1.6L Petrol Engine

Wahab, Amir Izzuddin (2019) The Characteristic Of The In-Cylinder Fluid Flow Of 1.6L Petrol Engine. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The main objective of this project is to study the effect of the Discharge of Coefficient, Swirl and Tumble in the inlet manifold on the block engine performance of 1.6 liter 16 Valve DOHC MIVEC engine. This project was conducted to investigate the behavior of engine air breathing performance between Discharge of Coefficient, Swirl and Tumble. This experiment was tested by opening valve lift with different adapter to show the different behavior of air flow. The experiment has been done on cylinder 2 of the engine at 25” H20 test pressure. Also, this experiment using Superflow® SF-1020-SB flowbench machine. In this study, an experiment approach has been performed in order to investigate the flow distribution of intake port that will affect the performance of the engine when the valves lift ratio increases. The discharge of coefficient mostly affected by the boundary layer, surface roughness and flow separation. The swirl flow was performed with asymmetric valve lift with 2 cases. The difference in valve lifting is 0.17cm. The tumble flow was measured by lifting in half and full lifting. Results from all experiments were recorded and have been discussed in this report. Discharge of Coefficient (Cd) increases gradually with valve lift ratio (L/D). Swirl test in this engine showed that the fluid motion does not swirl and there is also no swirl at the engine design. Tumble flow shown the zig zag trend on the graph. Head orientation at 120-degree was produced high speed of tumble

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